[#PEM_write_bio_PKCS7_stream]
= PEM_write_bio_PKCS7_stream
:mrdocs:

Write a PKCS#7 structure as PEM, streaming content from `in` when required.

== Synopsis

Declared in `<openssl/pkcs7.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
PEM_write_bio_PKCS7_stream(
    xref:BIO.adoc[BIO]* out,
    xref:PKCS7.adoc[PKCS7]* p7,
    xref:BIO.adoc[BIO]* in,
    int flags);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *out*
| BIO that receives the PEM‐encoded PKCS#7.
| *p7*
| PKCS#7 object to serialise.
| *in*
| Optional content BIO for streaming signed/enveloped data, or NULL.
| *flags*
| SMIME_* / PKCS7_* streaming and encoding flags.
|===


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